These are the worst in the thread. "PAIDFOR" wins the ultimate douchebag license plate award.

As mentioned earlier, I do like "IS-FAIL." Unfortunately that car is as rare or rarer than the M3 so you'd really have to be patient to wait for that one brief moment of victory. And for all you know, he could be a car enthusiast drug dealer cum murderer and decide to shoot you, which would put a damper on your license plate winning.